I am having pollination issues with my almonds. I am putting out 2.5 hives per acre on a 20 acre piece but I am surrounded by 60 acres of nectarines that bloom almost simultaneously. It seems that my very expensive bees are spreading out over those trees as well as mine and I'm getting a very weak pollination. No one else has almonds or any other crop that needs bees for at least 2 miles currently. In my search for a solution I have come across an idea that I have heard a guy who knows a guy has tried and it worked but I can't find any direct information. As the story goes I wound erect a 30 ft netting perimeter fence, and since my trees are only about 15 ft The bees will have no reason to travel high enough to go over the nets. I have heard stories of someone doing this to keep bees out of his mandarins but cannot confirm it. Does anyone have any experience or advice for a situation like this?